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Unit 2 Test Review

Quiz by Amanda Wood

High School
Biology (2017)
Texas Essential Knowledge and Skills (TEKS)

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19 questions
Show answers
  • Q1
    Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more —
    proteins
    nitrogen
    structure
    energy
    30s
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  • Q2
    Which of the following biomolecules typically contains both nitrogen and phosphate?
    Protein
    Nucleic acid
    Carbohydrate
    Lipid
    30s
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  • Q3
    Which of these substances stores the most energy?
    one gram of carbohydrate
    one gram of alcohol
    one gram of fat
    one gram of protein
    30s
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  • Q4
    A biomolecule that is a large, complex set of chains composed of alternating subunits called nucleotides has which of these functions in the cell?
    storing genetic information
    storing energy
    building tissue
    catalyzing cellular reactions
    30s
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  • Q5
    Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?
    nucleic acid
    protein
    lipid
    carbohydrate
    30s
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  • Q6
    Which of the following macromolecules are a prominent part of animal connective tissue such as cartilage and keratin?
    proteins
    lipids
    nucleic acids
    carbohydrates
    30s
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  • Q7
    What occurs at G1?
    Question Image
    Period of growth and development between mitotic divisions
    Cleavage of cytoplasm and formation of the cell plate
    Nuclear membrane, nucleolus, and chromatin fade
    Chromatin condenses to form chromosomes
    30s
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  • Q8
    What process results in two complete strands of DNA from one original strand?
    Transformation
    Translation
    Replication
    Transcription
    30s
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  • Q9
    During prophase, chromosomes become visible, the spindle forms, the nucleolus and nuclear envelope disappear. In which cellular process does prophase occur?
    Mitosis
    Growth phase
    Interphase
    DNA replication
    30s
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  • Q10
    The diagram below represents the cell cycle. During the cell cycle, normal cells exit the G1 phase and enter the G0 phase where they rest. Typically, cells will reenter the cycle at G1 prior to going on to S phase. However, abnormal cells, such as cancer cells, may not be allowed to enter the G0  phase to rest.  As a result, these cells will most likely
    Question Image
    mutate during G2 phase
    die after DNA replication
    fail to complete mitosis
    continuously repeat the cycle
    30s
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  • Q11
    Leukemia is cancer of the body’s blood-forming tissues. A leukemia patient’s bone marrow produces abnormal white blood cells which do not function properly. A pharmacology company is trying to develop drugs to regulate the production of abnormal white blood cells.  Which of the following processes is most likely affected by this new drug?
    Cellular division
    Cellular respiration
    Cell differentiation
    Transport of molecules
    30s
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  • Q12
    During DNA replication, a chemical called DNA polymerase acts as an enzyme to quickly bond nucleotides on the complementary strand. DNA polymerase belongs to a large class of biomolecules that perform most of the actions carried out by organisms called ―
    Carbohydrates
    Nucleic Acids
    Lipids
    Proteins
    30s
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  • Q13
    Chromosomes are composed of two types of biomolecules. One of the biomolecules in chromosomes is called DNA, which functions as the genetic code. The other biomolecules in chromosomes are called histones, which bind the DNA tightly for cell division. Genes in DNA have the code for making histones.  Based on the information above, which types of biomolecules are in chromosomes?
    Proteins and nucleic acids
    Proteins and carbohydrates
    Nucleic acids and carbohydrates
    Carbohydrates and lipids
    30s
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  • Q14
    A photomicrograph of onion root tip cells during mitosis is shown below. Which phase of mitosis is occurring in the cell indicated by the arrow?
    Question Image
    Telophase
    Anaphase
    Prophase
    Metaphase
    30s
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  • Q15
    Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur?
    Mitosis
    Interphase
    Translation
    Transcription
    30s
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  • Q16
    As cancerous cells multiply uncontrollably, abnormal tissue masses form. These masses of tissue are called –
    cell bags
    tumors
    alveoli
    metastasize
    30s
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  • Q17
    Mutations in genes which regulate the cell cycle could lead to –
    blood poisoning
    RSV
    cancer
    hepatitis
    30s
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  • Q18
    Which statement best describes the end result of this process?
    Question Image
    Two new DNA molecules are formed, each identical to the original.
    The new DNA molecules are made from opposite DNA strands so they are not identical.
    New molecules of mRNA are transcribed from the DNA molecule.
    A protein molecule is synthesized from the code in the DNA molecule.
    30s
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  • Q19
    What monomer is represented by this diagram?
    Question Image
    nucleotide
    glycerol
    monosaccharide
    amino acid
    30s
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